Hi there, I am currently studying Quantum Field Theory (well, for about 3 weeks isch), and it's really good fun! I would like to know how QFT relates Integrable QFT... I don't really know what it is. Can anyone tell me (i) The theoretical background of Integrable QFT (ii) The relationship between these two field theories (iii) What's the most interesting part of Integrable QFT (in your opinion) (iv) The Ising Model (I have read some papers about it, but I don't really understand what's going on there!!) (v) Is the work on Integrable QFT complete now, or can we still improve it? What direction though? Thank you!